Oil-burning heater



Jan. 1, 1929. 1,697,687

L. LocKwooD i OIL BURNING HEATER Filed March 27, 1928 fn/@Winx the ordinary construction.

Patented im.; i, 192e.

UNITED-STATES;

meren LEE Locxwoon, or; nas momes, Iowa. i

oILLB'UnNmG mman.'

.Alpplioation med March 27,

" My invention relates to that class of'oilf 'bustion.

My object is to vprovide aheater of this class with means whereby a contained in the oil bowl ast the bottom w' be constantly maintained in a relatively cool condition to thereby prevent the formation and deposits of carboniwithin this bowl which would tend to clog the oil in 'the delivery nozzle, and at the same time proyide means for greatly increasing the relative heat of the air being delivered to the combustion cham. ber to thereby materially increase the vaporization. and 'combustion ofthe oil from the surface'of the oil bowl.

'My invention consists inthe construction, arrangement and combination of the various parts of the heater, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed'out in my claims, and illustrated in the accompanying drawings, in which Figure 1 shows a vertical central sectional View through a furnace embodying my 'invention; and. Figure 2 shows a on the line 2-2 of Figure 1. Referring to the accompanying'drawings, l have used the reference numeral l() to indicate generally the heater drum, preferably cylindrical and in an upri ht position. From this heater drum near t e top a'ue pipe 11 is projected, and this pipe where it enters the drum isprovided with a damper 12. The bottom of the flue drum is indicated bythe numeral 13 and is provided with a central opening at 1 4, preierabl covered by a screen 15. The furnace wall elow the bottoml is formed with aincireulating 'openings' 16. rlhe entire heater:mayv beprovided with an enclosing jacket 17, and the heater-preferably has an entrance door 18 to provide ac-V cess to the interior of the heater.

Mounted within the heater near its b ottom is an oil bowl 19 supplied' by an oil plpe 20 through a nozzle 21. These parts are of bove the bowl 19 is a cylindrical combustion chamber 22, preferably having aycone shaped upper end 23 with a discharge opening24. The sides of the combustion chamber 22are formed with Aperforations 25. .'lhls uantity of' o` f l V.'tormed' at itsfront edge with a series of air horizontal ysectional view 192s. seria1 No; 265,013.

combustion chamber also is'of the ordinary construction, and heretofore it has been customary to have the products of combustion pass from this chamber directly to the'flue. My improvementin heaters' of this type erica.

'consists in providing a horizontal partition 26,extended across the heating drum at about the top of the combustion chamber, and

circulatingfopenings 27. .Below this 'partij tion 26 is a cylindrical partition 28 spaced apart from'the drum 1 0 and also from the combustion chamber, andextending" com- -pletely around the interior of the heater.

At the sideof the Kheating drum adjacent `to the flue, l have provided an upright auxiliary liue 29, extended through the partition 26 and in communication with the chamber 30 formed between the partition 28 -an'd the drum 10.

I havealso vprovided a deiiector plate 314 i 'cold` air will impinge directly upon'the bottom of the bowl 19 and will be delayed in its passage upwardly by this deilector plate, to thereby provide a maximumamount of cooling to the bottomuo the bowl. ln addition to this, this deflector plate directs the cold incoming air toward the. bottom of the'partition 28, sothat cold incoming air strikes this partition and is'heated by radiation inwardly from the .partition 28 during its passage up- Y wardly between the partition 28 and the com bustion chamber`22. Hence by thetime the incoming air is delivered into the combustion chamber its temperature will have been raised to a considerable extent and this heated air is thendischarged through the openings 25 directly toward the center of the bowl 19, as iswell known, heated. air will vaporize ,the fuel oil morev rapidly and thoroughly than will air ture'. v

Hence, the double purpose is accomphshed of maintainin the bottom of theoil bowl at alcomparative y low temperature, and at the same time vaporize the oil from the surface of of lower temperathe bowl-with air o .relatively high tenziperafv ture.` N

In practical operation, and when the heater is being started, the damper 12is opened and the products f combustion from the combustion chamber,l will pass directly yto the lue.` 'As soon, however, as the heater 1s sufficiently warmed by this combustion, the dam er 12 is closed, whereupon the heat rising romthe combustion chamber passes Hrst upwardly to a point near` the top of the heater drum, and is. then deflected downwardly through the openings 27 in the partition 26, .and passes adjacent-to the partition 28 and from the front of the heater around in the chamber 30 to the Hue 29 at the back of the heater, and

l* then upwardly into the Hue 29. During the time these products of combustion are pass' ing inclose contact with the partition 28, this partition will be heated to a considerable eX- tent and the heat that is radiated from the partition 28 is ap lied to the incoming air to the combustion c amber and'raises its temperature considerably, for' aiding vaporiza tion and combustion of the fuel from the surface of the fuel bowl. Obviously. when the damper 12 is closedthe products of combustion have an increased path of travel and apply heat to the bottom portion of the heater,

thereby greatly increasing the amount of heat radiated from the heater.

I claim as m invention:

' 1. In an oil urning heater, the combination of a heaterdrum, aHue 1n communication with the ,heater drum, a'damper for the Hue, a bowl for receiving and retaining a quantity'of fuel oil, a 'combustion chamber above the oil bowl', a substantially horizontal partition near the to of the combustion chamber and having air circulating o enings formed inthe front portion thereo a cylindricalpartitioli below the horizontal partition surrounding the combustion chamberl Iand spaced apart from it, an auxiliary Hue commumcatmg with the chamber between the cylindrical partitionand the heater drum,

said Hue being extended upwardly and in communicationat its upperend with the main Hue, and in such position that when they ,tion of a'heater drum, a Hue in communication with the heater drum, a damper for the Hue, a bowl for receiving and retainin a quantity of fuel oil, a combustion cham er above the oil bowl, a substantially horizonta'l partition near the topv of the combustion chamber and having air circulating openings formed in the front portion thereof, a cylindrical partition below the horizontal parti- 'tionsurrounding the combustion chamber and spaced apart from it, an auxiliary Hue communicating with the chamberbetween the cylindrical partition and the heater drum, l

said Hue being extended upwardly andin communication at its yupper end with thev 'main Hue, and in such position that when the said damper is closed communication be tween the auxiliary Hue and the main Hue fwill remain open, said Vheater bein also provided with means for admittingair 4For combustion purposesthrough the 'bottom of the heater and delivering the same toward the bottom ofthe fuel bowl, and a deflector plate at the bottom of the oilv bowl extended downwardly and outwardly for retarding the circulation ofthe .cold incoming air as it passes over the bottom of the fuel bowl and directing-it'toward the heated cylindrical partition to -raise its temperature before entering the combustion chamber.

A LEE LOCKWOOD. 

